In this second part of Test 8, I will produce a final proof containing the information that we’ve aimed to garner from creating the grayscale test plate, and thereby illustrate some of the results possible in a range of line and tone.
Date: December 13, 2012
Researcher’s Name: Sally
Plate Material: Copper .032
Plate Size: 5.5″ x 6″
Room Temperature: 68 Degrees Fahrenheit, dry
Printed grayscale Pronto plate on Brother HL-2280DW laser printer with Toner Save “Off” and paper set to “Thick.” Cut down plate and set on hot plate beneath cookie sheet roof for 25 minutes to set toner. Warmed a teaspoon of unmodified BIG on a small piece of foil for two minutes until it no longer held its shape, and formed a pool. I rolled a slab of this using a large, heavy roller. I mixed a wiping solution of warm water and a small amount of Gum Arabic, aiming for a Ph around 5. I adhered the Pronto plate to a clean, dampened glass surface and sponged it gently with wiping solution. I rolled on a thin layer of BIG, removed the beads of solution from the roller with a quick newsprint roll, and gently dabbed the Pronto plate again with solution. I repeated this three times for a total of 3 thin applications of BIG. Cautious about moving the ground around too much, I was very gentle with the sponging. Warming the BIG appears to have made it looser and easier to roll. No visible scumming, and a very even application. I placed the Pronto plate face-down on a degreased copper plate, and ran it through the Takach press with two sizing catchers, two sheets of newsprint 5.5 pressure. Transfer appears successful. Baked on ground at 320 degrees for 15 minutes which caused some orange oxidation. I let the plate cure for one hour prior to etching.
Ferric Chloride 41 Deg. Baume
Timed Application of Mordant
Removal of Grounds
Ground came away fairly easily with Soy Solv and a toothbrush.
After Bath Evaluation
Plate is clearly etched, and ground does not appear to have degraded in the Ferric tank.
Inking Methods Graphic Chemical Bone Black carded on with a mat board chip and wiped normally with tarletan in circular motions.
Paper Type: Hahnemuhle Copperplate
Paper Soaking Time: 30 minutes
Press Blanket Setup: Takach press, 2 sizing catchers, 2 newsprint, pressure 5.5
This proof does provide us with line and tone information, as desired. There is a good range of grays. Black areas in the original image came out light gray, as though aquatinted for a few seconds.